This advanced sensor utilizes Swiss manufacturing technology with a photopolymer membrane coated with silicon nitride and silicon semiconductor conductive elements. Featuring built-in chlorine and temperature probes, it employs MEMS technology with microelectronic components that are injection-molded and encapsulated.

Operating Principle

As the concentration of free chlorine or chlorine dioxide in water samples changes, the sensor generates varying current intensities. The data is processed through a voltage regulator and signal amplifier, then converted into a standard MODBUS RS485 signal.

Technical Specifications

Parameter	Details
Measurement	HCLO, CLO₂
Measurement System	Microelectronic MEMS technology, special membrane structure
Measuring Range	0-5 ppm
Measurement Accuracy	±2% F.S.; at pH 7 in drinking water, minimum ±0.03 ppm
Resolution	0.01
Polarization Time	First use: immerse in chlorinated water for 2 hours, then power on for 30 minutes
Response Time	<30 seconds after polarization
Minimum Conductivity	≥100 µS/cm; not suitable for ultrapure water
Operating Temperature	0-40°C (non-condensing)
Temperature Compensation	Pt1000, built-in automatic compensation
Maximum Pressure	10 bar
Recommended Flow Velocity	≥0.03 m/s, in flow cell
pH Range	5-9; below 5 will damage the membrane cap
Maximum Chlorine Concentration	≥5 ppm; exceeding will reduce membrane cap service life
Supply Voltage	Standard 24V DC ±2V; optional 12V DC ±2V
Power Consumption	Approx. 1.56 W
Digital Communication	MODBUS RS485
Cable Length	3 m standard, customizable
Probe Weight	Approx. 210 g
Thread Size	NPT 3/4
Connection Type	5-pin waterproof aviation connector
Wetted Materials	PVC and Viton® O-ring seals

Warranty & Maintenance

Warranty: 3 years (membrane cap is a consumable and not covered)

Maintenance: Membrane cap replacement cycle: 1 year (or depending on water quality conditions)

Note: This sensor features anti-interference silicon nitride coating for enhanced performance in industrial applications.

Tags:

Online Water Quality Monitor

Multi Parameter Water Quality Monitor

PH ORP Meter

Conductivity Meter

Dissolved Oxygen Meter

Ion-selective Meter

Residual Chlorine Meter

Turbidity Analyzer

TSS Analyzer

COD Analyzer

Optical Water Quality Sensor

Ultrasonic Meter

Water Quality Monitoring Accessories

Online Water Quality Monitor

Drinking Water Monitoring

Industrial Wastewater Monitoring

Aquaculture water Quality Monitoring

Boiler Water Monitoring

Multi Parameter Water Quality Monitor

PH ORP Meter

PH ORP Transmitter And Sensor

Portable PH ORP Meter

Desktop PH ORP Meter

Conductivity Meter

Conductivity Transmitter And Sensor

Portable Conductivity Meter

Desktop Conductivity Meter

Dissolved Oxygen Meter

Dissolved Oxygen Transmitter And Sensor

Portable Dissolved Oxygen Meter

Desktop Dissolved Oxygen Meter

Ion-selective Meter

Fluoride Analyzer

Chloride Analyzer

Calcium Analyzer

Ammonia Nitrogen Analyzer

Nitrate Nitrogen Analyzer

Residual Chlorine Meter

Disinfectant Water Monitoring

Turbidity Analyzer

TSS Analyzer

COD Analyzer

Optical Water Quality Sensor

Ultrasonic Meter

Liquid Level Meter

Sludge Interface Meter

Water Quality Monitoring Accessories

products details

Swiss-Tech Photopolymer Membrane Chlorine Sensor with Silicon Nitride Coating and MODBUS RS485 Communication

Online Water Quality Monitor

Multi Parameter Water Quality Monitor

PH ORP Meter

Conductivity Meter

Dissolved Oxygen Meter

Ion-selective Meter

Residual Chlorine Meter

Turbidity Analyzer

TSS Analyzer

COD Analyzer

Optical Water Quality Sensor

Ultrasonic Meter

Water Quality Monitoring Accessories

Online Water Quality Monitor

Drinking Water Monitoring

Industrial Wastewater Monitoring

Aquaculture water Quality Monitoring

Boiler Water Monitoring

Multi Parameter Water Quality Monitor

PH ORP Meter

PH ORP Transmitter And Sensor

Portable PH ORP Meter

Desktop PH ORP Meter

Conductivity Meter

Conductivity Transmitter And Sensor

Portable Conductivity Meter

Desktop Conductivity Meter

Dissolved Oxygen Meter

Dissolved Oxygen Transmitter And Sensor

Portable Dissolved Oxygen Meter

Desktop Dissolved Oxygen Meter